818022918 has 32 divisors (see below), whose sum is σ = 1655821440. Its totient is φ = 269392640.

The previous prime is 818022917. The next prime is 818022929. The reversal of 818022918 is 819220818.

It is a super-2 number, since 2×818022918² = 1338322988746469448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818022911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267478 + ... + 270518.

It is an arithmetic number, because the mean of its divisors is an integer number (51744420).

Almost surely, 2^818022918 is an apocalyptic number.

818022918 is an abundant number, since it is smaller than the sum of its proper divisors (837798522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818022918 is a wasteful number, since it uses less digits than its factorization.

818022918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572.

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 818022918 is about 28601.0999438833. The cubic root of 818022918 is about 935.2373092439.

The spelling of 818022918 in words is "eight hundred eighteen million, twenty-two thousand, nine hundred eighteen".